Scientific name
Acer macrophyllum
Big-leaf maple trees can reach up to 100 ft in height. The leaves are simple, opposite, large, dark green, and are deeply lobed. The leaf margins are usually undulating.

Scientific name
Acer negundo
Also Known As
Ash-leaf maple, California boxelder, Manitoba maple, Western boxelder
Boxelder is part of the maple family but is unusual in that it has compound leaves. Seedlings of this plant have a remarkable resemblance to poison ivy, so be careful!

Scientific name
Acer rubrum
Also Known As
Scarlet maple, Soft maple, Swamp maple
Red maples are distinctive in having the red flowers emerge a week or more before the leaves. In the fall, look for brilliant red leaves.

Scientific name
Acer glabrum
Also Known As
Douglas maple, Mountain maple
Rocky mountain maple trees have small, rounded, 3 to 5 lobed leaves. The leaves also have two sizes of pointed teeth which distinguish it from red maples.

Scientific name
Acer saccharum
Leaves have five lobes with few teeth and are pale beneath. Leaf buds are brown. Sap from a broken leaf stalk is not milky like in Norway Maples.